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How the Web Talks: HTTP, Status Codes, Headers, and Invisible Protocols
Why API docs are full of status codes and headers. This article walks through a real request to clarify the four parts of HTTP — request, response, status code, header — then explains the difference between WebSocket and polling, why CORS blocks you, what a proxy does in the middle, and why SSH and private keys belong to the same family.
2026/09/30 · intro · networking · API